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Overview

overview

10

Static

static

3

2024-02-21...ck.exe

windows7-x64

10

2024-02-21...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-02-21_269f96427e5b664a5055a5202f513e03_virlock

  • Size

    179KB

  • Sample

    240221-xdd4zadd8w

  • MD5

    269f96427e5b664a5055a5202f513e03

  • SHA1

    4688552b3f1b16b42dbc41fd4be686a966afc410

  • SHA256

    11c7c4f197a9f34bd385729d25eddfdb105d8e4d92779764808d0a03a58de8b8

  • SHA512

    646504ab7973d7ab74f9603bfa2d5f6fad1632df778d00060f6ea8f62f233f152462bc7bd973ed1c2151bba82f762bb3ac5f876326ecc6f3089d5a1035ae0044

  • SSDEEP

    3072:jFjDJjuU+2gNcRq+95nYY3MdvTnbhFzAxt97kUM7Ai71:Zjti2geD91Yc8Ln1Cxt2LZ1

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-02-21_269f96427e5b664a5055a5202f513e03_virlock

    • Size

      179KB

    • MD5

      269f96427e5b664a5055a5202f513e03

    • SHA1

      4688552b3f1b16b42dbc41fd4be686a966afc410

    • SHA256

      11c7c4f197a9f34bd385729d25eddfdb105d8e4d92779764808d0a03a58de8b8

    • SHA512

      646504ab7973d7ab74f9603bfa2d5f6fad1632df778d00060f6ea8f62f233f152462bc7bd973ed1c2151bba82f762bb3ac5f876326ecc6f3089d5a1035ae0044

    • SSDEEP

      3072:jFjDJjuU+2gNcRq+95nYY3MdvTnbhFzAxt97kUM7Ai71:Zjti2geD91Yc8Ln1Cxt2LZ1

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (88) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

4
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks